It’s so natural, we barely even notice we do it. Tilting a head to expose the neck, smiling or laughing at something that really wasn’t funny, moving closer to the person making unfunny jokes, mimicking their actions. Our body language is perhaps the most subtle expression of what we’re really thinking and feeling, and is a crucial component of the courting dance known as flirting.
Though cheesy pick-up lines abound, a lot is conveyed even before words are uttered. A prolonged gaze or arched eyebrow gives clues to the person across the bar that you’re interested without having to explicitly ask about his/her sign. Though the statistics differ, some attribute almost 80 percent of our first impressions to our stance and swagger. And because flirting helps both animals and humans find mates faster and easier, it is an evolutionary trait hard-wired in our brains. Mice twitch their noses at potential mates, colorful peacocks strut around for admiring peahens, and pigeons puff their chests to look buff. As much as we have moved on from mice and feathers, we do much of the same, for the exact same reasons.
Because flirting is an easy way for us to display our genes, mating potential, and interest, nature put a lot toward its success. This is one of the reasons why some males birds have exotic plumes, why elk carry hefty antlers (a sign of a healthy immune system), and why male fiddler crabs have such large claws. He waves his in the air, alerting females to his whereabouts, and signaling them to come closer for a better look at his burrow, colorful shell, and flashy claw.
By studying humans in their natural courting habitat (usually bars), scientists have been able to document the movements we make when we’re interested in someone else. As it turns out, we’re all quite predictable. A woman smiles, raises her eyebrows, opens her eyes wide, holds a gaze, fidgets with her hair, lowers and tilts her head, and laughs. A man might jut out his chin, try to make his chest appear as large as possible, unconsciously flex an arm, laugh aloud, and smile. But what do all these ridiculous gestures mean?
Like a lioness presenting herself to a mate, women will arch their backs and show off their hips to indicate fertility. Though I hate the stereotype of a giggly, doe-eyed blonde, women laugh and open their eyes wide not because they’re ditzy, but because it conveys an image of surrender and youth. (No wonder Dolly Parton was so jovial and popular.) While both men and women will make prolonged eye contact with people they’re interested in, a woman might also lick her lips, helping to bring visual attention to the mouth. If someone is staring at your lips he may be thinking of how to kiss them.
Together, both sexes take part in mirroring, tending to sit or stand in similar positions, or pick up a drink at the same time. When one person leans in, another will do the same if she likes what she’s seeing. The theory behind this is that people are drawn to others who are like them. (Dating note: if he picks his nose, put the mirror down.)